#!/bin/sh

# Slackware build script for povray:
# the Persistence of Vision Raytracer

# Written by Niels Horn - niels.horn@gmail.com
# revision date 2009/10/05

PRGNAM=povray
VERSION=3.6.1
# The Source tarball does not contain the 'minor' version number in its name:
SRCVERSION=3.6 
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}

# Automatically determine the architecture we're building on:
if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i486 ;;
    arm*) ARCH=arm ;;
    # Unless $ARCH is already set, use uname -m for all other archs:
       *) ARCH=$( uname -m ) ;;
  esac
fi

CWD=$(pwd)
TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

POVRAY_BUILDER=${POVRAY_BUILDER:-"$(whoami) on $(hostname)"}

# povray prefers -O3 to build, so we do not use the -O2 flag
if [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-march=i486 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-march=i686 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-fPIC"
  LIBDIRSUFFIX="64"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

set -e

rm -rf $TMP/$PRGNAM-$VERSION $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
tar xvf $CWD/$PRGNAM-$SRCVERSION.tar.gz
cd $PRGNAM-$VERSION
chown -R root:root .
chmod -R u+w,go+r-w,a-s .

CXXFLAGS="$SLKCFLAGS" \
  ./configure \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --sysconfdir=/etc \
  --localstatedir=/var \
  --mandir=/usr/man \
  --build=$ARCH-slackware-linux \
  COMPILED_BY="$POVRAY_BUILDER"

make
make install DESTDIR=$PKG

find $PKG | xargs file | grep -e "executable" -e "shared object" | grep ELF \
  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true

( cd $PKG/usr/man
  find . -type f -exec gzip -9 {} \;
  for i in $(find . -type l) ; do ln -s $(readlink $i).gz $i.gz ; rm $i ; done
)

# Rename configuration files to .new, will be checked by doinst.sh
mv $PKG/etc/$PRGNAM/$SRCVERSION/$PRGNAM.conf \
   $PKG/etc/$PRGNAM/$SRCVERSION/$PRGNAM.conf.new
mv $PKG/etc/$PRGNAM/$SRCVERSION/$PRGNAM.ini \
   $PKG/etc/$PRGNAM/$SRCVERSION/$PRGNAM.ini.new

# ./configure does not accept "--docdir=", so we'll move the docdir manually
mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
mv $PKG/usr/share/doc/$PRGNAM-$SRCVERSION/* $PKG/usr/doc/$PRGNAM-$VERSION/
rm -r $PKG/usr/share/doc
cp -a COPYING INSTALL $PKG/usr/doc/$PRGNAM-$VERSION
find $PKG/usr/doc/$PRGNAM-$VERSION -type f -exec chmod 644 {} \;
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc
sed "s,__VERSION__,$SRCVERSION,g" $CWD/doinst.sh > $PKG/install/doinst.sh

cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-tgz}
